U3DXT: Face Recog Memory Leak on iOS

Using the face recognition, eventually get these warnings in Xcode:

2014-04-23 12:02:30.529 tmnt[1326:60b] WARNING: -[ setMinFrameDuration:] is deprecated. Please use AVCaptureDevice
setActiveVideoMinFrameDuration
2014-04-23 12:02:31.217 tmnt[1326:60b] Unknown CIDetectorTracking specified. Ignoring.

then get a series of these:
2014-04-23 12:05:30.124 tmnt[1326:60b] Received memory warning.
WARNING → applicationDidReceiveMemoryWarning()

until a memory crash.

everything else seems to be working fine before this.

using unity 4.3.4f1 with xcode 5.1.1

We are working on this issue, and will get back when we have a fix. Thanks.

Edit: Version 1.7.1.0 is released with fixes to face detection speed and memory. Please see Assets/U3DXT/Examples/coreimage/ for some examples.